Ricoh D129 - Page 530

Service Call Conditions
SM 6-41 D129/D130
Trouble-
shooting
770 B
Shift motor error
The shift motor HP sensor does not detect any change for 1.86 seconds after
the shift motor has turned on at power on or during its operation.
 Defective shift motor
 Defective shift motor HP sensor
791 D
Bridge unit error
The machine recognizes the finisher, but does not recognize the bridge unit.
 Defective connector
 Broken harness
 Incorrect installation
792 B
Finisher error
The machine does not recognize the finisher, but recognizes the bridge unit.
 Defective connector
 Defective harness
 Incorrect installation